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In the result of the operation the contents of counters assigned to binary inputs I1 and
I2 are initialized to "0" (cleared).
3.9. The antenna
Connecting the antenna is necessary to provide the proper operation of the MT-703
telemetry module. The antenna should be connected to the SMA (or optionally FME)
socket placed on the bottom side of a module housing.
The antenna type depends on the local strength of GSM signal as well as on the user
needs. The place where antenna is mounted is very important as well. In case of the
low GSM signal it may be necessary to use the directional antennas.
Alternatively, it is also possible to use the antenna located inside the module. To do
this, you have to remove the SMA antenna socket from the bottom side of the module
and mount it in the inner holder. The empty hole in the module housing should be
sealed by the protective cap. This operation is not possible if the FME type socket is
used.
3.10. Module housing
Due to the possible hard environmental conditions, the MT-703 module housing is
manufactured of the high quality plastics. It ensures enough protection (IP67) for the
precision electronic instruments, even in very hard operating conditions. The module
has standard housing manufactured by FIBOX company, catalogue number PCT121207
(or PCT121210 for MT-703 HC version). All specifications of the housing including
material data are available on the manufacturer site www.fibox.com.
You should remember that the protection level provided by the housing depends on its
correct closing and sealing the cable glands located on the bottom side. The housing
which is opened or unsealed does not protect the electronic circuits and batteries
inside.
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